diff options
Diffstat (limited to 'lib/libmtd_legacy.c')
| -rw-r--r-- | lib/libmtd_legacy.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/lib/libmtd_legacy.c b/lib/libmtd_legacy.c index 46f51fd..e1ab48e 100644 --- a/lib/libmtd_legacy.c +++ b/lib/libmtd_legacy.c @@ -215,6 +215,46 @@ int legacy_mtd_get_info(struct mtd_info *info) return 0; } +int legacy_get_mtd_oobavail(const char *node) +{ + struct stat st; + struct nand_ecclayout_user usrlay; + int fd, ret; + + if (stat(node, &st)) + return sys_errmsg("cannot open \"%s\"", node); + + if (!S_ISCHR(st.st_mode)) { + errno = EINVAL; + return errmsg("\"%s\" is not a character device", node); + } + + fd = open(node, O_RDONLY); + if (fd == -1) + return sys_errmsg("cannot open \"%s\"", node); + + ret = ioctl(fd, ECCGETLAYOUT, &usrlay); + if (ret < 0) { + sys_errmsg("ECCGETLAYOUT ioctl request failed"); + goto out_close; + } + + ret = usrlay.oobavail; + +out_close: + close(fd); + + return ret; +} + +int legacy_get_mtd_oobavail1(int mtd_num) +{ + char node[sizeof(MTD_DEV_PATT) + 20]; + + sprintf(node, MTD_DEV_PATT, mtd_num); + return legacy_get_mtd_oobavail(node); +} + /** * legacy_get_dev_info - legacy version of 'mtd_get_dev_info()'. * @node: name of the MTD device node @@ -335,6 +375,9 @@ int legacy_get_dev_info(const char *node, struct mtd_dev_info *mtd) close(fd); + ret = legacy_get_mtd_oobavail(node); + mtd->oobavail = ret > 0 ? ret : 0; + /* * Unfortunately, the device name is not available via ioctl, and * we have to parse /proc/mtd to get it. |